22020002222121 has 24 divisors (see below), whose sum is σ = 31944189461184. Its totient is φ = 14616632550240.

The previous prime is 22020002222093. The next prime is 22020002222203. The reversal of 22020002222121 is 12122220002022.

22020002222121 is a `hidden beast` number, since 220 + 200 + 0 + 2 + 2 + 221 + 21 = 666.

It is not a de Polignac number, because 22020002222121 - 2²² = 22019998027817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020002222094 and 22020002222103.

It is not an unprimeable number, because it can be changed into a prime (22020002222321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1634661 + ... + 6834626.

It is an arithmetic number, because the mean of its divisors is an integer number (1331007894216).

Almost surely, 2^{22020002222121} is an apocalyptic number.

It is an amenable number.

22020002222121 is a deficient number, since it is larger than the sum of its proper divisors (9924187239063).

22020002222121 is a wasteful number, since it uses less digits than its factorization.

22020002222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470541 (or 8470538 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22020002222121 its reverse (12122220002022), we get a palindrome (34142222224143).

The spelling of 22020002222121 in words is "twenty-two trillion, twenty billion, two million, two hundred twenty-two thousand, one hundred twenty-one".